Conductor support



7 Nov. 8, 1932. c. c. MARTIN CONDUCTOR SUPPORT llu lll 1 Patented Nov. 8, 1932 UNITED STATES PATENT OFFICE CHARLES C. MARTIN, OF FAIRFIELI), IOWA, ASSIGNOR TO THE LOUDEN MACHINERY CGMIANY, OF FAIRFIELD, IOWA, A. CORPORATION OF IOWA CONDUCTOR SUPPORT Application filed February 24, 1931. Serial No. 517,839.

This invention relates to improvements in supports for trolley conductors, and particularly to devices for clamping the conductor to the support.

The object of the invention is to provide a clamping device which will hold the conductor in rigid engagement with the support so that the conductor can not slide in the suport. p It is a further object of the invention to provide a clamping device that is simple in construction, inexpensive to manufacture, and durable and efficient in operation.

With the use of electrically driven monorail conveying equipment, switch sections are commonly used to transfer the conveyor trolleys from one line of trackway to another, and of necessity, the trolley conductors adjacent the switch sections must be rigidly secured to a support to prevent sliding movement, otherwise the conductors would be liable to interfere with each other when the switch is thrown. My invention contemplates a device that will accomplish the desired object without the necessity of securing the conductor to the support by brazing or other means as is now oftentimes done.

The above and other objects and advantages will appear from a consideration of the following description in conjunction with the accompanying drawing in which Fig. 1 is a side elevation of the support in engagement with the conductor,

Fig. 2 is a vertical cross section thereof on line 2-2 of Fig. 1.

Fig. 3 is a perspective view of the conductor engaging member and Fig. 4 is a plan view of Fig. 1.

Referring to the drawing, which shows an insulator head 10 having a screw-threaded support bolt 11 embedded therein, the insulator head 10 being secured to a support 12 by means of a U bolt 13, having nuts 14 applied on the threaded ends of the U bolt, as is well known in the art.

A conductor engaging member 15 is provided with a recess 16 extending horizontally through the central lower portion of the member, the recess being formed to provide stationary bearing edges 17 What is known as a figure 8 trolley conductor designated in the drawing as 18, is preferable used with my invention, but the invention is not limited to that design of conductor as it may be used with any conductor having parts which may be engaged and held by the bearing edges 17. A vertical threaded opening 19 is made on the upper part of the engaging member 10 in which the threaded end of the bolt 11 is screwed.

The engaging member 15 is placed in slidmg engagement with the conductor 18 by inserting the enlarged upper portion of the conductor in the recess 16, and the engaging member 15 is then placed in rigid engagement with conductor by turning the insulator head 10 which will screw the bolt 11 into the threaded opening 19 until the end of the bolt 11 comes in contact with the conductor. it Will be apparent that the stationary bearlng edges 17 will engage the lower sides of the upper portion of the conductor, and as the bolt 11 is tightened the insulator head is clamped on the conductor so that it cannot slide thereon.

The insulator head 10 being held in place by supporting members, either like that of the member 12 and U bolt 13, or equivalents thereof, becomes when connected to the conductor engaging member, a supporting member for it, and may be considered as such.

lVhile I have shown and described a pie ferred form of my invention, it will be under stood that the invention is not limited to the particular details of construction herein disclosed, as various changes may be made without departing from the spirit and scope of the invention.

l-Iaving described the invention, what I claim is:

1. The combination with a trolley-engaging conductor having an enlarged anchorage portion, a reduced web portion and a trolley-engaging portion, of means for supporting said conductor comprising a member having an opening to receive the enlarged anchorage portion and a slot leading to said opening to receive said web portion and having a screw-threaded opening leading to said anchorage receiving opening, an insulating supporting member provided with a screwthreaded member for screwing into said screw-threaded opening and engaging the anchorage portion of the conductor to clamp it in position, and means for securing said insulating supporting member to a support,

2. The combination with a trolley-engaging conductor having an enlarged anchorage portion, a reduced web portion and a trolleyengaging portion, of means for supporting said conductor comprising a member having an opening to receive the enlarged anchorage portion and a slot leading to said opening to receive said web portion and having a screwthreaded opening leading to said anchorage receiving opening, an insulating supporting member provided with a screw-threaded member for screwing into said screw-threaded opening and engaging the anchorage portion of the conductor to clamp it in position, and means for securing said insulating supporting member to a support, said screwthreaded member being of metal imbedded in said insulating member.

3. The combination with a trolleyengaging conductor having an enlarged anchorage portion, a reduced web portion and a trolleyengaging portion, of means for supporting said conductor comprising a member having 30 an opening to receive the enlarged anchorage portion and av slot leading to said opening to receive said web portion and having a screwthreaded opening leading to said anchorage receiving opening, an insulating supporting member provided with a screw-threaded member for screwing into said screw-thread ed opening and engaging the anchorage portion of the conductor to clamp it in position, and means for securing said insulating supg porting member to a support, said insulating member having an annular channel therein and said securing means comprising a U-bolt engaging said channel.

4. The combination with a trolley-engag- 4; ing conductor having an enlarged anchorage portion, a reduced web portion and a trolleyengaging portion, of means forsupporting said conductor comprising a member having an opening to receive the enlarged anchorage portion and a slot leading to said opening to receivesaid web portion and having a screw threaded opening leading to said anchorage receiving opening, an insulating supporting member provided with a screw-threaded member for screwing into said screw-threaded opening and engaging the anchorage portion of the conductor to clamp it in position, and means for securing said insulating supporting member to a support, said insulating 69 member having an annular skirt portion surrounding said support-ing means.

In witness whereof, I have hereunto subscribed my name.

CHARLES C. MARTIN. 

